%0 Journal Article %A S. V. Gaidenko %T On exceptional sets on the boundary and uniqueness of a solution of the second and third boundary value problems for an elliptic equation %J Sbornik. Mathematics %D 1986 %P 351-366 %V 53 %N 2 %U http://geodesic.mathdoc.fr/item/SM_1986_53_2_a3/ %G en %F SM_1986_53_2_a3